Koma, Cosmos Serpent (Commander) - Optimized

Koma, Cosmos Serpent
Rank #289
248decks
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Background image for Can You Build Simic in Commander Without... Going Simic?
Arnaud Gompertz
Aug 6, 2025
Arnaud Gompertz
Can You Build Simic in Commander Without... Going Simic?
Can you go Simic without doing the Simic stuff that everyone dreads? Yes you can! Arnaud is here with some uncanny Commander deck ideas.
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Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Chameleon, Master of Disguise
6.7%inclusion4 decks60 decks
5%synergy
Impostor Syndrome
4.7%inclusion3 decks64 decks
3%synergy
Hide on the Ceiling
1.7%inclusion1 decks60 decks
1%synergy
Multiversal Passage
1.1%inclusion1 decks93 decks
1%synergy
High Synergy Cards
Adrix and Nev, Twincasters
81%inclusion202 decks248 decks
73%synergy
Parallel Lives
73%inclusion182 decks248 decks
67%synergy
Sakashima of a Thousand Faces
70%inclusion174 decks248 decks
65%synergy
Spark Double
75%inclusion185 decks248 decks
65%synergy
Elemental Bond
68%inclusion168 decks248 decks
62%synergy
Whelming Wave
65%inclusion162 decks248 decks
54%synergy
Doubling Season
63%inclusion156 decks248 decks
53%synergy
Sakashima the Impostor
55%inclusion136 decks248 decks
52%synergy
Serpent of Yawning Depths
58%inclusion144 decks248 decks
52%synergy
Mana Drain
62%inclusion154 decks248 decks
46%synergy
Top Cards
Counterspell
77%inclusion191 decks248 decks
27%synergy
Cultivate
75%inclusion186 decks248 decks
28%synergy
Kodama's Reach
68%inclusion169 decks248 decks
31%synergy
Birds of Paradise
68%inclusion168 decks248 decks
40%synergy
Heroic Intervention
65%inclusion161 decks248 decks
35%synergy
Nature's Lore
64%inclusion159 decks248 decks
34%synergy
Beast Within
63%inclusion156 decks248 decks
12%synergy
Three Visits
59%inclusion147 decks248 decks
36%synergy
Rampant Growth
59%inclusion146 decks248 decks
18%synergy
Koma, World-Eater
57%inclusion138 decks243 decks
43%synergy
Game Changers
Cyclonic Rift
78%inclusion193 decks248 decks
51%synergy
Rhystic Study
75%inclusion186 decks248 decks
53%synergy
Fierce Guardianship
67%inclusion166 decks248 decks
50%synergy
Worldly Tutor
46%inclusion114 decks248 decks
30%synergy
Seedborn Muse
46%inclusion114 decks248 decks
30%synergy
Mystical Tutor
43%inclusion106 decks248 decks
33%synergy
Force of Will
41%inclusion101 decks248 decks
30%synergy
Consecrated Sphinx
38%inclusion93 decks248 decks
29%synergy
Ancient Tomb
33%inclusion83 decks248 decks
24%synergy
Mana Vault
21%inclusion53 decks248 decks
15%synergy
Creatures
Craterhoof Behemoth
51%inclusion126 decks248 decks
41%synergy
Llanowar Elves
50%inclusion124 decks248 decks
22%synergy
Aesi, Tyrant of Gyre Strait
48%inclusion120 decks248 decks
31%synergy
Spawning Kraken
45%inclusion112 decks248 decks
38%synergy
Junk Winder
44%inclusion110 decks248 decks
38%synergy
Elvish Mystic
44%inclusion108 decks248 decks
19%synergy
Ohran Frostfang
34%inclusion85 decks248 decks
31%synergy
Roaming Throne
34%inclusion84 decks248 decks
26%synergy
Fyndhorn Elves
32%inclusion79 decks248 decks
16%synergy
Eternal Witness
31%inclusion78 decks248 decks
10%synergy
Tatyova, Benthic Druid
29%inclusion71 decks248 decks
-3%synergy
Arixmethes, Slumbering Isle
29%inclusion71 decks248 decks
15%synergy
Sakura-Tribe Elder
28%inclusion69 decks248 decks
8%synergy
Enduring Vitality
27%inclusion66 decks246 decks
19%synergy
Hullbreaker Horror
25%inclusion62 decks248 decks
7%synergy
Murkfiend Liege
25%inclusion61 decks248 decks
9%synergy
Garruk's Packleader
24%inclusion59 decks248 decks
21%synergy
Fanatic of Rhonas
22%inclusion54 decks247 decks
16%synergy
Delighted Halfling
21%inclusion53 decks248 decks
10%synergy
Azusa, Lost but Seeking
19%inclusion46 decks248 decks
4%synergy
Archetype of Imagination
17%inclusion42 decks248 decks
13%synergy
Summon: Leviathan
16%inclusion25 decks156 decks
9%synergy
Slinn Voda, the Rising Deep
14%inclusion35 decks248 decks
7%synergy
Esix, Fractal Bloom
14%inclusion34 decks248 decks
10%synergy
Octomancer
13%inclusion31 decks247 decks
8%synergy
Nezahal, Primal Tide
13%inclusion31 decks248 decks
1%synergy
Saryth, the Viper's Fang
12%inclusion29 decks248 decks
10%synergy
Kinnan, Bonder Prodigy
12%inclusion29 decks248 decks
8%synergy
Toski, Bearer of Secrets
12%inclusion29 decks248 decks
8%synergy
Scute Swarm
11%inclusion27 decks248 decks
-10%synergy
Curiosity Crafter
10%inclusion25 decks248 decks
6%synergy
Coiling Oracle
10%inclusion25 decks248 decks
-3%synergy
Tireless Provisioner
10%inclusion25 decks248 decks
-5%synergy
Uro, Titan of Nature's Wrath
10%inclusion24 decks248 decks
0%synergy
Enduring Curiosity
9.3%inclusion23 decks246 decks
6%synergy
Circle of Dreams Druid
9.3%inclusion23 decks248 decks
7%synergy
Lotus Cobra
9.3%inclusion23 decks248 decks
-5%synergy
Glasspool Mimic
8.9%inclusion22 decks248 decks
5%synergy
Avenger of Zendikar
8.9%inclusion22 decks248 decks
-9%synergy
Reclamation Sage
8.5%inclusion21 decks248 decks
-6%synergy
Selvala, Heart of the Wilds
8.5%inclusion21 decks248 decks
5%synergy
Vorinclex, Voice of Hunger
8.5%inclusion21 decks248 decks
5%synergy
Oracle of Mul Daya
8.1%inclusion20 decks248 decks
-1%synergy
Faerie Mastermind
7.7%inclusion19 decks248 decks
3%synergy
Arbor Elf
7.7%inclusion19 decks248 decks
1%synergy
Phyrexian Metamorph
7.3%inclusion18 decks248 decks
-1%synergy
Inga and Esika
7.3%inclusion18 decks248 decks
4%synergy
Dryad of the Ilysian Grove
7.3%inclusion18 decks248 decks
-3%synergy
Hydroelectric Specimen
6.9%inclusion17 decks247 decks
1%synergy
Xolatoyac, the Smiling Flood
6.9%inclusion17 decks248 decks
-1%synergy
Instants
Swan Song
54%inclusion134 decks248 decks
35%synergy
Pongify
46%inclusion115 decks248 decks
22%synergy
An Offer You Can't Refuse
44%inclusion108 decks248 decks
21%synergy
Growth Spiral
42%inclusion103 decks248 decks
-3%synergy
Double Major
38%inclusion94 decks248 decks
29%synergy
Negate
36%inclusion90 decks248 decks
10%synergy
Arcane Denial
36%inclusion89 decks248 decks
13%synergy
Rapid Hybridization
34%inclusion85 decks248 decks
8%synergy
Second Harvest
31%inclusion76 decks248 decks
24%synergy
Force of Negation
30%inclusion74 decks248 decks
21%synergy
Return of the Wildspeaker
25%inclusion61 decks248 decks
14%synergy
Pact of Negation
23%inclusion57 decks248 decks
16%synergy
Sink into Stupor
18%inclusion45 decks247 decks
7%synergy
Krosan Grip
18%inclusion44 decks248 decks
9%synergy
Chord of Calling
18%inclusion44 decks248 decks
10%synergy
Reality Shift
15%inclusion38 decks248 decks
1%synergy
Nature's Claim
15%inclusion38 decks248 decks
5%synergy
Brainstorm
15%inclusion37 decks248 decks
1%synergy
Tamiyo's Safekeeping
15%inclusion36 decks248 decks
9%synergy
Voidslime
14%inclusion34 decks248 decks
9%synergy
Archdruid's Charm
13%inclusion33 decks248 decks
7%synergy
Mystic Reflection
13%inclusion32 decks248 decks
10%synergy
Noxious Revival
13%inclusion31 decks248 decks
6%synergy
Planar Genesis
12%inclusion30 decks247 decks
1%synergy
Strix Serenade
12%inclusion29 decks247 decks
8%synergy
Harrow
11%inclusion27 decks248 decks
-1%synergy
Crop Rotation
10%inclusion26 decks248 decks
-3%synergy
Stubborn Denial
10%inclusion26 decks248 decks
8%synergy
Force of Vigor
10%inclusion25 decks248 decks
5%synergy
Resculpt
9.3%inclusion23 decks248 decks
3%synergy
Simic Charm
9.3%inclusion23 decks248 decks
1%synergy
Muddle the Mixture
8.5%inclusion21 decks248 decks
4%synergy
Return to Nature
8.1%inclusion20 decks248 decks
2%synergy
Snakeskin Veil
7.7%inclusion19 decks248 decks
2%synergy
Narset's Reversal
7.3%inclusion18 decks248 decks
6%synergy
Tyvar's Stand
6.5%inclusion16 decks248 decks
4%synergy
Legolas's Quick Reflexes
6.5%inclusion16 decks248 decks
4%synergy
Collective Resistance
6.1%inclusion15 decks247 decks
3%synergy
Eureka Moment
6.0%inclusion15 decks248 decks
-5%synergy
Sublime Epiphany
6.0%inclusion15 decks248 decks
4%synergy
Flusterstorm
6.0%inclusion15 decks248 decks
-1%synergy
Disallow
6.0%inclusion15 decks248 decks
4%synergy
Veil of Summer
5.6%inclusion14 decks248 decks
0%synergy
Dispel
5.6%inclusion14 decks248 decks
1%synergy
Entish Restoration
5.2%inclusion13 decks248 decks
-4%synergy
Sorceries
Farseek
53%inclusion132 decks248 decks
29%synergy
Irenicus's Vile Duplication
48%inclusion118 decks248 decks
41%synergy
Skyshroud Claim
43%inclusion107 decks248 decks
34%synergy
Finale of Devastation
27%inclusion68 decks248 decks
16%synergy
Quantum Misalignment
22%inclusion55 decks248 decks
19%synergy
Overwhelming Stampede
21%inclusion51 decks248 decks
8%synergy
Triumph of the Hordes
19%inclusion48 decks248 decks
16%synergy
Bala Ged Recovery
17%inclusion41 decks248 decks
6%synergy
Explore
16%inclusion39 decks248 decks
-5%synergy
Sea Gate Restoration
14%inclusion35 decks248 decks
9%synergy
Green Sun's Zenith
13%inclusion32 decks248 decks
4%synergy
Rite of Replication
13%inclusion32 decks248 decks
6%synergy
Migration Path
12%inclusion29 decks248 decks
8%synergy
Distant Melody
8.9%inclusion22 decks248 decks
5%synergy
Shamanic Revelation
8.9%inclusion22 decks248 decks
3%synergy
Rishkar's Expertise
8.5%inclusion21 decks248 decks
0%synergy
Windfall
8.1%inclusion20 decks248 decks
4%synergy
Explosive Vegetation
8.1%inclusion20 decks248 decks
2%synergy
Regrowth
7.7%inclusion19 decks248 decks
4%synergy
Ponder
7.3%inclusion18 decks248 decks
0%synergy
Urban Evolution
6.9%inclusion17 decks248 decks
-3%synergy
Flare of Cultivation
6.5%inclusion16 decks247 decks
4%synergy
Bridgeworks Battle
6.5%inclusion16 decks247 decks
2%synergy
Raise the Palisade
6.5%inclusion16 decks248 decks
0%synergy
Fabricate
6.0%inclusion15 decks248 decks
0%synergy
Harmonize
6.0%inclusion15 decks248 decks
0%synergy
Natural Order
6.0%inclusion15 decks248 decks
5%synergy
Expropriate
6.0%inclusion15 decks248 decks
4%synergy
Curse of the Swine
5.6%inclusion14 decks248 decks
-6%synergy
Time Warp
5.6%inclusion14 decks248 decks
4%synergy
Into the North
5.2%inclusion13 decks248 decks
4%synergy
Tooth and Nail
5.2%inclusion13 decks248 decks
4%synergy
Last March of the Ents
5.2%inclusion13 decks248 decks
1%synergy
Utility Artifacts
Lightning Greaves
50%inclusion124 decks248 decks
28%synergy
Helm of the Host
42%inclusion103 decks248 decks
36%synergy
Swiftfoot Boots
40%inclusion99 decks248 decks
14%synergy
The One Ring
21%inclusion51 decks248 decks
13%synergy
Combine Chrysalis
18%inclusion44 decks248 decks
13%synergy
The Great Henge
15%inclusion36 decks248 decks
6%synergy
Emerald Medallion
14%inclusion35 decks248 decks
11%synergy
Mirror Box
13%inclusion32 decks248 decks
9%synergy
Sapphire Medallion
13%inclusion31 decks248 decks
9%synergy
Eldrazi Monument
10%inclusion26 decks248 decks
10%synergy
Banner of Kinship
8.2%inclusion20 decks243 decks
6%synergy
Idol of Oblivion
7.7%inclusion19 decks248 decks
4%synergy
Coat of Arms
7.3%inclusion18 decks248 decks
6%synergy
Skullclamp
7.3%inclusion18 decks248 decks
6%synergy
Winter Orb
5.6%inclusion14 decks248 decks
5%synergy
Enchantments
Mystic Remora
50%inclusion123 decks248 decks
34%synergy
Tribute to the World Tree
49%inclusion121 decks248 decks
42%synergy
Kindred Discovery
35%inclusion87 decks248 decks
25%synergy
Sylvan Library
33%inclusion83 decks248 decks
24%synergy
Growing Rites of Itlimoc
25%inclusion61 decks248 decks
18%synergy
Cryptolith Rite
21%inclusion53 decks248 decks
18%synergy
Exploration
21%inclusion53 decks248 decks
8%synergy
Wild Growth
17%inclusion41 decks248 decks
8%synergy
Primal Vigor
16%inclusion40 decks248 decks
13%synergy
Defense of the Heart
16%inclusion39 decks248 decks
13%synergy
Utopia Sprawl
15%inclusion36 decks248 decks
8%synergy
Beastmaster Ascension
13%inclusion32 decks248 decks
10%synergy
Unnatural Growth
12%inclusion30 decks248 decks
9%synergy
Burgeoning
12%inclusion29 decks248 decks
5%synergy
Carpet of Flowers
11%inclusion28 decks248 decks
8%synergy
Garruk's Uprising
11%inclusion27 decks248 decks
-5%synergy
Paradox Haze
10%inclusion26 decks248 decks
10%synergy
Propaganda
9.3%inclusion23 decks248 decks
3%synergy
Kenrith's Transformation
8.5%inclusion21 decks248 decks
4%synergy
Imprisoned in the Moon
7.7%inclusion19 decks248 decks
4%synergy
Asceticism
7.3%inclusion18 decks248 decks
4%synergy
Dismiss into Dream
6.5%inclusion16 decks248 decks
6%synergy
Opposition
6.0%inclusion15 decks248 decks
6%synergy
Wilderness Reclamation
5.6%inclusion14 decks248 decks
-3%synergy
Omniscience
5.6%inclusion14 decks248 decks
1%synergy
Moonlit Meditation
5.0%inclusion5 decks100 decks
3%synergy
Planeswalkers
Oko, Thief of Crowns
37%inclusion91 decks248 decks
29%synergy
Nissa, Who Shakes the World
5.2%inclusion13 decks248 decks
2%synergy
Utility Lands
Reliquary Tower
64%inclusion159 decks248 decks
14%synergy
Boseiju, Who Endures
47%inclusion116 decks248 decks
25%synergy
Otawara, Soaring City
37%inclusion91 decks248 decks
18%synergy
Yavimaya, Cradle of Growth
34%inclusion85 decks248 decks
12%synergy
Command Beacon
25%inclusion63 decks248 decks
21%synergy
Three Tree City
24%inclusion59 decks247 decks
19%synergy
Gaea's Cradle
20%inclusion50 decks248 decks
13%synergy
Castle Garenbrig
17%inclusion42 decks248 decks
12%synergy
Evendo, Waking Haven
17%inclusion17 decks103 decks
11%synergy
Mystic Sanctuary
16%inclusion40 decks248 decks
3%synergy
Mistrise Village
15%inclusion31 decks202 decks
5%synergy
Temple of the False God
15%inclusion38 decks248 decks
0%synergy
Mosswort Bridge
14%inclusion34 decks248 decks
-4%synergy
Rogue's Passage
14%inclusion34 decks248 decks
-8%synergy
Alchemist's Refuge
13%inclusion33 decks248 decks
-5%synergy
Shifting Woodland
7.7%inclusion19 decks247 decks
1%synergy
Minamo, School at Water's Edge
7.7%inclusion19 decks248 decks
1%synergy
Urza's Saga
7.3%inclusion18 decks248 decks
2%synergy
Castle Vantress
6.0%inclusion15 decks248 decks
-1%synergy
Restless Vinestalk
5.6%inclusion14 decks248 decks
0%synergy
Scavenger Grounds
5.2%inclusion13 decks248 decks
1%synergy
Strip Mine
5.2%inclusion13 decks248 decks
2%synergy
Dryad Arbor
5.2%inclusion13 decks248 decks
-1%synergy
Mana Artifacts
Sol Ring
96%inclusion239 decks248 decks
16%synergy
Arcane Signet
85%inclusion211 decks248 decks
22%synergy
Thought Vessel
45%inclusion111 decks248 decks
25%synergy
Talisman of Curiosity
36%inclusion90 decks248 decks
15%synergy
Simic Signet
34%inclusion84 decks248 decks
1%synergy
Chrome Mox
16%inclusion39 decks248 decks
9%synergy
Fellwar Stone
12%inclusion30 decks248 decks
3%synergy
Lotus Petal
11%inclusion27 decks248 decks
4%synergy
Thran Dynamo
7.7%inclusion19 decks248 decks
5%synergy
Mox Diamond
6.9%inclusion17 decks248 decks
2%synergy
Commander's Sphere
6.0%inclusion15 decks248 decks
-3%synergy
Basalt Monolith
6.0%inclusion15 decks248 decks
-1%synergy
Lands
Forest
93%inclusion231 decks248 decks
-2%synergy
Island
93%inclusion231 decks248 decks
-2%synergy
Command Tower
92%inclusion229 decks248 decks
7%synergy
Breeding Pool
77%inclusion192 decks248 decks
32%synergy
Hinterland Harbor
73%inclusion181 decks248 decks
14%synergy
Rejuvenating Springs
73%inclusion180 decks248 decks
28%synergy
Yavimaya Coast
64%inclusion158 decks248 decks
11%synergy
Misty Rainforest
59%inclusion146 decks248 decks
28%synergy
Dreamroot Cascade
59%inclusion146 decks248 decks
18%synergy
Barkchannel Pathway
53%inclusion132 decks248 decks
33%synergy
Flooded Grove
46%inclusion115 decks248 decks
6%synergy
Simic Growth Chamber
42%inclusion103 decks248 decks
-7%synergy
Vineglimmer Snarl
33%inclusion83 decks248 decks
-5%synergy
Waterlogged Grove
33%inclusion81 decks248 decks
12%synergy
Tropical Island
28%inclusion69 decks248 decks
14%synergy
Fabled Passage
27%inclusion68 decks248 decks
13%synergy
Temple of Mystery
27%inclusion67 decks248 decks
-12%synergy
Hedge Maze
26%inclusion65 decks248 decks
7%synergy
Exotic Orchard
22%inclusion55 decks248 decks
-2%synergy
Willowrush Verge
22%inclusion53 decks240 decks
7%synergy
Prismatic Vista
19%inclusion48 decks248 decks
12%synergy
Botanical Sanctum
19%inclusion47 decks248 decks
7%synergy
Sink into Stupor
18%inclusion45 decks247 decks
7%synergy
Myriad Landscape
17%inclusion43 decks248 decks
-5%synergy
Rimewood Falls
17%inclusion42 decks248 decks
7%synergy
Bala Ged Recovery
17%inclusion41 decks248 decks
6%synergy
Flooded Strand
16%inclusion40 decks248 decks
5%synergy
Windswept Heath
15%inclusion37 decks248 decks
5%synergy
Scalding Tarn
15%inclusion36 decks248 decks
5%synergy
Sea Gate Restoration
14%inclusion35 decks248 decks
9%synergy
Verdant Catacombs
14%inclusion35 decks248 decks
4%synergy
Polluted Delta
13%inclusion32 decks248 decks
3%synergy
Tangled Islet
13%inclusion31 decks248 decks
-4%synergy
Thornwood Falls
13%inclusion31 decks248 decks
-5%synergy
Overflowing Basin
12%inclusion30 decks247 decks
-7%synergy
Snow-Covered Forest
12%inclusion30 decks248 decks
5%synergy
Evolving Wilds
12%inclusion30 decks248 decks
-13%synergy
Snow-Covered Island
12%inclusion29 decks248 decks
5%synergy
Wooded Foothills
11%inclusion28 decks248 decks
2%synergy
Reflecting Pool
11%inclusion28 decks248 decks
8%synergy
City of Brass
10%inclusion25 decks248 decks
4%synergy
Terramorphic Expanse
10%inclusion24 decks248 decks
-10%synergy
Mana Confluence
10%inclusion24 decks248 decks
4%synergy
Path of Ancestry
9.3%inclusion23 decks248 decks
-8%synergy
Glasspool Mimic
8.9%inclusion22 decks248 decks
5%synergy
Gemstone Caverns
7.3%inclusion18 decks248 decks
1%synergy
Hydroelectric Specimen
6.9%inclusion17 decks247 decks
1%synergy
Cavern of Souls
6.9%inclusion17 decks248 decks
1%synergy
Bridgeworks Battle
6.5%inclusion16 decks247 decks
2%synergy
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